Blast-furnace-charging apparatus.



PATENTED MAY 12 1903. J. G. CROMWELL 4' BLAST FURNACE CHARGING APPARATUS.

APPLICATION FILED DEGQG, 1902.

no MODEL.

INVENTOR m: Nonms Pmns w. PHOTO-LITHCL, wAsHmu'roN, a. c.

UNITED STATES Patented May 12, 1903.

' PATENT OFFica JOHN C. CROMWELL, OF CLEVELAND, OHIO, ASSIGNOR TO THE GARRETT- OROMWELL ENGINEERING COMPANY, OF CLEVELAND, OHIO, A CORPO- RATION OF OHIO.

BLAST-FURNAQE-CHARGING APPARATUS.

SPECIFICATION forming part of Letters Iatent No. 727,754, dated May 12, 1903. Application filed December 6, 1902. Serial No. 134,378. (No model.)

To all whom it may concern:

Be it known that 1, JOHN C. ORoMwELL, of Cleveland, in the county of Ouyahoga'and State of Ohio, have invented a new and useful Blast-Furnace-Oharging Apparatus, of which the following is a full, clear, and exact description, reference being had to the accompanying drawing, in which the figure is V a sectional side elevation showing the top of [O a blast-furnace provided with my improved time may beswung in or out to adjust the charging apparatus.

Myinvention relates to apparatus for charging blast-furnaces, and more particularly to that type of apparatus wherein an inclined deflector is used between the upper bell and the lower bell, as set forth in the application of myself and C. W. A. Kolkebeck, Serial No.

117,428, filed July 29, 1902. The object of my invention is to improve the distribution of the stock, and hence make the working of the furnace more regular.

To that end it consists in providing a throat between the upper bell and the upper supplemental hopper, from which the stock drops upon the upper bell.

It further consists in the construction and arrangement of the parts, as hereinafter more fully described and claimed.

In the drawing, 2 represents the top plate 0 of a blast-furnace, 3 the main hopper, and 4 the closing-bell therefor. I

5 is a casing which extendsupwardly and inwardly from the top plate of the furnace and carries the annular deflector 6. This de- 5 flector is inclined inwardly and downwardly,

and I have shown it as provided with an upper flange member 7, secured between flanged members 8 and 9 of the casing. From the upper flange member 9 acasing extension 0 10 projects inwardly and upwardly to an annular casting 11, between which and a flange member 12 is clamped the seat 13 for the upper bell 14. A throat 15 extends in a vertical direction from the upper-bell seat, and to its upper end is secured the supplemental hopper 16. The bells may be supported and actuated by any suitable connections, and I bell.

have shown the upper bell as having a tubular rod 17, through which the lower rod 18 of the bell extends.

I have shown the deflector as provided in its lower portion with a series 'of segmental curved plates 19, pivoted at their upper ends and held in adjusted position by links 20, connecting them with the screw-bolts 21, extending through hand-nuts 22, mounted on the casing. By turning the hand-nuts the secdegree of inclination of the lower part of the deflector.

In operating the apparatus the material is discharged from the skip into the upper hopper and sliding down its sloping sides drops through thethroat upon the upper bell. A preliminary distribution is thus obtained, and when the u pper bell is lowered the stock drops upon the deflector, which directs it inwardly, so that it is again distributed upon the lower This main bell is actuated at proper intervals to drop the stock intothe furnacechamber. By adjusting the sections of the deflector the operator can change the distributionand remedy uneven working.

The advantages of my invention resu'ltfrom the use of the throat above the upper bell, which aids in the distribution of the stock and causes the furnace to work with more uniformity.

Variations may be made in the form and arrangement of the bells, the throat, deflector, and other parts without departing from my invention.

I claim- 1. In blast-furnace-charging apparatus, an upper hopper, a throat connected to its lower end, a downwardly and inwardly inclined defiector below the. upper bell, and a lower hopper and bell; substantially as described.

2. In blast-furnace-charging apparatus,an upper hopper, a throat beneath the same, a bell arranged to close the lower end of the throat, a lower main bell and hopper, a casing extending from the lower hopper upwardly and inwardly to the throat, and a downwardly and inwardly inclined deflector between the bells, and having an adjustable between the bells and within the casing; suhportion; substantially as described. .0 stantially as described. In testimony whereof I have hereunto set 3. In a blast-fnrnace-eharging apparatus, my hand. 5 an upper hopper, a throat below the same, an JGHN O. CROMW ELL.

upper and smaller bell arranged to close the \Vilnesses: lower end of the throat, a lower hopper with H. D. SMITH, a bell of large size, and an inclined deflector JOHN G. SHARP. 

